An excerpt from the website of a 3rd party vendor which tries to support JPA 2.0: "The primary difference between JPA 1.0 and JPA 2.0 implementations is how data is fetched: the JPA 1.0 implementation creates a JPQL query string for fetching while the JPA 2.0 implementation uses Criteria API

tomee7.0.0SNAPSHOT,objectdb 2.6.4 The OneToMany Entities are filled with 40.000 Records and they have between 20-40 Columns. It takes over 50s to load all Project Enities that contains the OneToMany Relationships. It should be load lazy but i dont know why the query fetch all the Data